This is a detailed PDF that explains step-by-step the process to install, configure and deploy an Untangle Firewall/UTM server and configure OpenVPN server and client via Untangle to allow secure & free remote access to your FreeNAS (or any other) server you have on your local network.

Untangle is a very powerful Firewall/UTM solution that offers a free and home version capable of setting up and easily managing remote access to systems and devices on your internal network.

This is version 1 of this resource and comments and suggestions are welcome.